Docker容器单机网络架构全攻略：使用自定义桥接的实践与探索五 使用自定义docker桥接网络5.1 重新创建新的容器5.2 重新创建新的容器，并且指定网络 5.3 docker网桥切换

Docker容器单机网络架构全攻略：使用自定义桥接的实践与探索

五 使用自定义docker桥接网络

5.1 重新创建新的容器

[superman@docker ~]$ docker run -dit --name superman001 alpine

示例：

[superman@docker ~]$ docker run -dit --name superman001 alpine
a7479884a350b2ba36211d91a087f631640b068a2771ca766b9afda880113791
[superman@docker ~]$ 
[superman@docker ~]$ docker ps -a
CONTAINER ID   IMAGE     COMMAND     CREATED              STATUS              PORTS     NAMES
a7479884a350   alpine    "/bin/sh"   About a minute ago   Up About a minute             superman001
[superman@docker ~]$ 
[superman@docker ~]$ docker inspect superman001 | grep -i ipaddress  
            "SecondaryIPAddresses": null,
            "IPAddress": "172.17.0.2",
                    "IPAddress": "172.17.0.2",
[superman@docker ~]$ 
[superman@docker ~]$ docker network ls
NETWORK ID     NAME      DRIVER    SCOPE
1aa209e7f1ec   br1       bridge    local
e3124ecf5bf5   bridge    bridge    local
1fe81a14e4c7   host      host      local
008ae2f75ac2   none      null      local
[superman@docker ~]$ 
[superman@docker ~]$ docker network inspect e3124ecf5bf5
[
    {
        "Name": "bridge",
        "Id": "e3124ecf5bf509eed6bae70009b6eee88edf8a3708e5ad0a680dee8804ea8817",
        "Created": "2024-06-27T19:45:15.436074478+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": null,
            "Config": [
                {
                    "Subnet": "172.17.0.0/16",
                    "Gateway": "172.17.0.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "a7479884a350b2ba36211d91a087f631640b068a2771ca766b9afda880113791": {
                "Name": "superman001",
                "EndpointID": "e22b8b08c943b3524d8b5efae3603ebcb09f8d450ced89c038039cf2e5202ca4",
                "MacAddress": "02:42:ac:11:00:02",
                "IPv4Address": "172.17.0.2/16",
                "IPv6Address": ""
            }
        },
        "Options": {
            "com.docker.network.bridge.default_bridge": "true",
            "com.docker.network.bridge.enable_icc": "true",
            "com.docker.network.bridge.enable_ip_masquerade": "true",
            "com.docker.network.bridge.host_binding_ipv4": "0.0.0.0",
            "com.docker.network.bridge.name": "docker0",
            "com.docker.network.driver.mtu": "1500"
        },
        "Labels": {}
    }
]
[superman@docker ~]$ 

5.2 重新创建新的容器，并且指定网络

[superman@docker ~]$ docker run -dit --name superman002 --network br1 alpine

示例：

[superman@docker ~]$ docker run -dit --name superman002 --network br1 alpine
20280f606803e2cd997e6723fd4b1db1fa86074b9d919995890c97154252d0ab
[superman@docker ~]$ 
[superman@docker ~]$ docker ps -a
CONTAINER ID   IMAGE     COMMAND     CREATED         STATUS         PORTS     NAMES
20280f606803   alpine    "/bin/sh"   5 seconds ago   Up 4 seconds             superman002
a7479884a350   alpine    "/bin/sh"   7 minutes ago   Up 7 minutes             superman001
[superman@docker ~]$ 
[superman@docker ~]$ docker inspect superman002 | grep -i ipaddress 
            "SecondaryIPAddresses": null,
            "IPAddress": "",
                    "IPAddress": "172.16.1.2",
[superman@docker ~]$ 
[superman@docker ~]$ docker network ls
NETWORK ID     NAME      DRIVER    SCOPE
1aa209e7f1ec   br1       bridge    local
e3124ecf5bf5   bridge    bridge    local
1fe81a14e4c7   host      host      local
008ae2f75ac2   none      null      local
[superman@docker ~]$ 
[superman@docker ~]$ docker network inspect 1aa209e7f1ec
[
    {
        "Name": "br1",
        "Id": "1aa209e7f1ecfb2a31aff43199ac845b90030480b854dba1a3aa2a32cfda74a1",
        "Created": "2024-06-24T11:22:13.046754701+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": {},
            "Config": [
                {
                    "Subnet": "172.16.1.0/24",
                    "Gateway": "172.16.1.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "20280f606803e2cd997e6723fd4b1db1fa86074b9d919995890c97154252d0ab": {
                "Name": "superman002",
                "EndpointID": "43ff4cf56a63c5f73045e195702dc9eeeef5de31501559700951146e3060332e",
                "MacAddress": "02:42:ac:10:01:02",
                "IPv4Address": "172.16.1.2/24",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {}
    }
]
[superman@docker ~]$ 

在不同的linux-bridge | docker network之间，默认网络隔离。

5.3 docker网桥切换

[root@centos7 docker]# docker network disconnect bridge superman001
[root@centos7 docker]# docker network connect br1 superman001

示例：

[superman@docker ~]$ docker network disconnect bridge superman001
[superman@docker ~]$ 
[superman@docker ~]$ docker network connect br1 superman001
[superman@docker ~]$ 
[superman@docker ~]$ docker inspect superman001 | grep -i ipaddress 
            "SecondaryIPAddresses": null,
            "IPAddress": "",
                    "IPAddress": "172.16.1.3",
[superman@docker ~]$ 
[superman@docker ~]$ docker network ls
NETWORK ID     NAME      DRIVER    SCOPE
1aa209e7f1ec   br1       bridge    local
e3124ecf5bf5   bridge    bridge    local
1fe81a14e4c7   host      host      local
008ae2f75ac2   none      null      local
[superman@docker ~]$ 
[superman@docker ~]$ docker network inspect 1aa209e7f1ec                 
[
    {
        "Name": "br1",
        "Id": "1aa209e7f1ecfb2a31aff43199ac845b90030480b854dba1a3aa2a32cfda74a1",
        "Created": "2024-06-24T11:22:13.046754701+08:00",
        "Scope": "local",
        "Driver": "bridge",
        "EnableIPv6": false,
        "IPAM": {
            "Driver": "default",
            "Options": {},
            "Config": [
                {
                    "Subnet": "172.16.1.0/24",
                    "Gateway": "172.16.1.1"
                }
            ]
        },
        "Internal": false,
        "Attachable": false,
        "Ingress": false,
        "ConfigFrom": {
            "Network": ""
        },
        "ConfigOnly": false,
        "Containers": {
            "20280f606803e2cd997e6723fd4b1db1fa86074b9d919995890c97154252d0ab": {
                "Name": "superman002",
                "EndpointID": "43ff4cf56a63c5f73045e195702dc9eeeef5de31501559700951146e3060332e",
                "MacAddress": "02:42:ac:10:01:02",
                "IPv4Address": "172.16.1.2/24",
                "IPv6Address": ""
            },
            "a7479884a350b2ba36211d91a087f631640b068a2771ca766b9afda880113791": {
                "Name": "superman001",
                "EndpointID": "b2eb9591ef0ffa3a5e242f0a3f539c980e2b441e55654381bd8317dd8fca05e1",
                "MacAddress": "02:42:ac:10:01:03",
                "IPv4Address": "172.16.1.3/24",
                "IPv6Address": ""
            }
        },
        "Options": {},
        "Labels": {}
    }
]
[superman@docker ~]$ 

基于主机名的访问（单独创建新的network可以⽀持docker容器主机名和IP地址解析）。

PS：因为公众号平台更改了推送规则，如果不想错过内容，记得读完点一下“在看”，加个“星标”，这样每次新文章推送才会第一时间出现在你的订阅列表里。点“在看”支持我吧!

👍 点赞，你的认可是我创作的动力！

⭐️ 收藏，你的青睐是我努力的方向！

✏️ 评论，你的意见是我进步的财富！